A tilt-table study is used to check for changes in heart rate and blood pressure when your body's position is changed. This test is most commonly done when a person has periods of losing consciousness or nearly fainting.

• Wear comfortable clothing or your hospital gown
• Do not eat or drink anything for at least six hours before the test. If you have diabetes, be sure to ask your doctor about this. Not eating can affect your blood sugar levels.
• Check with your doctor about all of the medicines that you normally take. You may continue to take your heart drugs. However, your doctor may request that you stop taking certain drugs.